What is the main purpose of main bearings in an engine?

Main bearings support the crankshaft within the engine block. They allow the crankshaft to rotate smoothly while handling the significant forces generated during combustion. Replacing them during an engine rebuild is crucial for proper oil clearance and reducing friction.

Does this main bearing set include all the necessary components for installation?

This set includes the main bearings themselves. You will need to ensure you have the correct assembly lube, torque wrench, and other standard engine rebuilding tools as recommended by the manufacturer's installation instructions.

What is the typical oil clearance for these bearings?

Refer to the manufacturer's installation instructions for the precise oil clearance specifications for your specific engine application. Proper oil clearance is critical for bearing life and engine performance.

Clevite Main Bearing Set MS979P10 - Ford 240 250 300

Name: Clevite Ford Pass & Trk 240 250 300 6 Cyl 1966-93 Main Bearing Set
Brand: Clevite
Price: 133.17 USD
Availability: InStock

Clevite Ford Pass & Trk 240 250 300 6 Cyl 1966-93 Main Bearing Set

$133.17

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Clevite Main Bearing Set for Ford 240, 250, 300 6-cyl engines (1966-1993). A well-built set for engine rebuilding.

Key Features

Fits Ford 240, 250, and 300 6-cylinder engines from 1966-1993.
Includes main bearings for crankshaft journal replacement.
Well-built for durability and proper load handling.
Designed for a direct fit in compatible Ford truck and van applications.
Part number MS979P10.

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Will this fit your vehicle?

Product Details

This is a Clevite Main Bearing Set, part number MS979P10. In this package, you get the main bearings needed to rebuild the crankshaft main journals on your Ford 240, 250, or 300 cubic inch inline-six engine. These engines were common in many Ford trucks and vans from 1966 through 1993, including models like the Ford F-150, E-150 Econoline, and Bronco.

When you're rebuilding an engine, especially one that's seen a lot of miles, replacing the main bearings is a critical step. These Clevite bearings are well-built to handle the loads and friction of the rotating crankshaft. They are designed to fit right into the factory main caps and block saddles, making installation straightforward for a rebuild project. Proper installation ensures the crankshaft spins freely with the correct oil clearance, which is essential for engine longevity and performance.

This set is a solid option for anyone undertaking a major engine overhaul or repair on compatible Ford vehicles. Make sure to follow the manufacturer's installation instructions carefully, paying close attention to bearing oil clearances and torque specifications for the main caps.